Motor.



PATEN'IIEDv JUNE 2, 1903.

fNo. 729,995.

W. J. BOBMPER.'

MOTOR.

APPLIOATION FILED APB. 18. 1902.

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IO MODEL.

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, NriED STATES Patented June 2, 1903.'

PATENT OFFICE.

WILLIE JOHN BOEMPER, OF NEW YORK, NuY., ASSIGNOR OF ONE-HALF TO AARON HERZBERG; OFNEW YORK, N. Y. l

MOTOR.

sPncIFIcATIoNrorning part of Letterslratent No. 729,995, dated June 2, 1903.

Application tiled April 18, 1902.

To 'a/ZZ whom, t 'may concer-71,:

Be it known that I,W-ILLIE JOHN BOEMPER, a citizen of the United States, anda resident of New York city, borough of Manhattan, State of New York, have invented certain new and useful Improvements in Motors, of which the following is a specification.

The object of my invention is to provide a simple and efficient motor capable of being operated by gas from the gas-mains in a house or other building and adapted to operate a rotary fan for cooling the air in rooms, o. and

to this end my invention comprises the novel details of improvement that will be more fully hereinafter set forth and then pointed out in the claims.

Reference is to behad to the accompanyin nected therewith. Fig. "16 is a horizontalrsec-L- tion on the plane of the line y yin'FigX,

Fig. 7 is an yenlarged. detail view of part of-. the gearingoperatedby the motor-piston, and p tively,fand adapted to slide in.. contact with va suitablefa'ce'or bearing'2c'on the cylinder Fig. 8 is a section on the line z z inFig.' 7.

Similar numerals of reference'indicate cor-.p`

responding partsin theL several views.;

In the drawings the numeral l'indicatesa suitable casing or frame adapted to contain the operative parts of my improved Imotor, said casing being shown provided with a doorj,A

or cover 1a to permit access'to the" interior thereof. 1 y Y l 2 indicates a cylinder shown supported within the casing l as bya bracket 3 or in'- other suitable manner, and from the piston 47j the piston-rod et 4b lextends through'suitable i g g i ton 4 is at the end of a stroke the appropriate stuffing-boxes at opposite ends of the cylinder. Said cylinder is provided with exhaust-ports and valves, (indicated at 5 5a.) Gas-inlet pipes 6 7 connect with the cylinder 2 near opposite ends thereof, and in the example shown said pipes connect `with a pipe 8, which communicates with a two-way cock 9, that is serai No. ioalison (no model.)

'adapted 4to be connected with a gas-main in any suitablemanner. The pipes and '7 are provided-with apertures to permita mixture of lgas and air to pass into cylinder 2.

The means I have shown for regulating the amount of air that is to be mixed with the gas mounted to slide on said pipes, so as to cover v,said apertures more or less, and saidsleevesy are shown connectedby a bar 12, adapted to .be adjusted along said pipes as by means of a screw 13, supported by casing 1, whereby as said screw is rotated the sleeves 10 11 will beadjusted to ncover the apertures in pipes 6 7 more or less, as required,

in the pipes 6 7 comprises sleeves 10 11,

. Y14 15 indicate valves locatedin thepipes 6 7 .I

and normally held on'th'eir seatsby springs, such valves beingarranged to prevent back ,pressure from the cylinderv2 from passing into the pipes 6 7.

The means I have shown forigniting theexplosive charges in the cylinder 2 comprise atube 16, Aconnected withthe Y two-way cock 9 and having a valve 17 to independently vcontrol 'the flow ofgas through said pipe, and said'pipeh'as gas jets ortips 16a 16", located adjacent to but at a suitable distance from .portsor apertures 2a 2"` near opposite ends of ,the cylinder 2.

(See Figs. 3 and 6.) The ports' 2, 2l. are controlled byslides 18 19, connected` with the piston-rods la 4b, respec- 2, the 'slides 18 19 being so arranged that when the piston is at the end of a stroke one of the ports 2n or 2b will be opened, while. the other fis closed. The slides 18 19 reciprocatel with ,the piston for controlling the back pressure inthe cylinder; To further assist in preventing l the pressure from entering the pipes'and 7, the piston Amay. be provided with a shield 4c, adapted to iit snuglywithin the cylinder, (see Figs. 5 and ..6,)"said shield0 being of "such dimension vthatlwhen the-pisend of the slide which projects from oppov site sides of said cylinder will cover the in'- ner end of the pipe 6 or 7, as the case may be. It will be observed that after the piston 4 moves a short distance from its extreme outl ward position the slide 4 will uncover the outlet of pipe 6 or 7 to permit the gas-and-air mixture to enter the cylinder, and the slide will only close such pipe when the piston arrives near the end of its stroke.

2O indicates a rotary fan, which maybe of suitable construction, and thesame is shown carried by a shaft 21, journaled in suitable bearings supported by the casing 1, said shaft being operated by said motor. In the construction I have shown for operating the fan by the motor the shaft 2l has secured to it a ratchet-wheel 22, which is surrounded by a pinion or gear-wheel 23, adapted to rotate freely independently of the ratchet-wheel 22 in one direction, but adapted to cause said ratchet-wheel and the shaft 21 to rotate in the opposite direction,the connection between the wheel 22 and pinion 23 being shown consisting of pins or rods 24, carried in bearings in said pinion and projecting into the path of the ratchet-teeth, being normally pressed toward said ratchet -by springs 24a. (See Figs. 7 and 3.) One or more of such pins and springs can be used, if desired. One face of the ratchet-teeth is inclined or beveled, and the opposite face is radial, so that when the pinion 23 is rotated in the direction of the arrow in Fig. 7 the pin 24 will cause ratchet 22 and shaft 2l to rotate in the same direction, and when pinion 23 is rotated in the reverse direction the dog or pin 24 will slip over the ratchet-teeth. The pinion 23 gears or meshes with a rack 25, connected with the piston-rod 4'. It will thus be seen that the piston 4 will impart intermittent motion tothe shaft 21 by the device described. In order to cause the piston 4 io impart motion to shaft 21 at each stroke, I provide the piston-rod 41 with a rack 26, that meshes with a pinion 27, that surrounds a ratchet 28, supported bya shaft 29, suitably carried by casing 1, said pinion and ratchet being provided with a dog or pin and spring similar to 24 24, the ratchet, however, being reversed in position relatively to the position of the ratchet 22, so that when the piston moves upwardly, as illustrated in the drawings, the pinion and ratchet 23 24 will rotate the shaft 21 in the direction of the arrow in Fig. 7, pinion 27 running idle, and on the return stroke of the piston rack 26 and pinion 27 will rotate ratchet 2S in the reverse direction, pinion 23 running idle. The ratchet 2S is connected with a pinion 30, that meshes with an idler 3O,Which in turn meshes with a gear 31, journaled on a shaft 32, carried by the casing 1, the gear 31 meshing with a pinion 33, secured on shaft 21, whereby as rack 26 descends the gearing described will cause shaft 21 to rotate in the same direction as it is rotated by pinion 23. Thus as the piston reciprocates a continuous rotary motion in one direction is imparted to shaft 21 and its fan.

The operation of my improvements may be described as follows: In starting the motor the two-way cock 9 is first turned so as to admit the gas to pipe 16, and cock 17 being turned the jets at 16 16b are lighted. The cock 0 is then further turned to admit gas to pipe 8, and the desired amount of air is mixed with the gas in the pipes 6 and 7. The motor is then started, and as piston 4 descends from the position shown in Fig. 5 an explosive mixture Will be drawn into the upper end ofthe cylinder, and on the return stroke of the piston this mixture will be compressed, and at the same time a charge will be drawn into the lower end of the cylinder. When the piston moves upwardly so far that the shield 1S uncovers the port 2, the compressed mixture will issue from said opening and will be ignited by the ame 16a, and thereupon an explosion will occur within the cylinder, forcing back the piston and compressing the charge in the part of the cylinder beneath the same,

and the shield 19 will at the proper moment f uncover the port 2b to permit the charge to ignite at the jet 16", and so on as the piston reciprocates, it being understood that after the explosion has taken place at each end of the cylinder' the latter is exhausted on the corresponding return stroke of the piston. It will be apparent that the motor operates on the four-cycle type, and that as the same operation occurs on each side of the piston there will result an explosion for each two strokes ofthe piston. At each stroke of the piston motion is imparted to the shaft 21, so that a continuous rapid rotation of fan 2O can be effected. Of course the shaft 21 can be utilized to transmit power to other devices than to the fan in any desired manner.

My invention is not limited to the details of construction and arrangements shown and described, as they may be varied without departing from the spirit thereof.-

Having now described my invention, what I claim is-- 1. The combination of a cylinder, a piston,- a pair of perforated mixing-chambers leading to the cylinder near opposite ends, sleeves mounted on said chambers to regulate the flow of air to said chambers, a bar connecting said sleeves, means to adjust said bar and sleeves, and means to ignite charges in said cylinder, substantially as described.-

2. The combination of a cylinder and pis ton, rods extending through the ends of said cylinder from opposite sides of said piston, pipes leading to said cylinder near opposite ends, means to prevent back pressure through said pipes, ports opening through said cy1in der near opposite ends, shields carried by said rods to control said ports, and a pipe having gas jets or tips adjacent to said ports exterior of the cylinder, substantially as described.

3. The combination of a cylinder and piston, with a pair of pipes leading to the cylinder near opposite ends thereof, a feed-pipe connected with said pipes, a two-way cock connected with the feed-pipe, a pipe 16 connected with said cock and provided with jets, ports opening through said cylinder near opposite ends adjacent to said jets,- said piston ICIO Ilo

having rods extending through opposite ends.

of the cylinder, slides connected with said rods adapted to bear on guides on the exterior of the cylinder to control said ports, and means to prevent back pressure through the cylinder from said pipes, substantially as described.

v 4. The combination ofI a cylinder and pis.

' ton, with a pair of pipes leading to the cylinder near opposite ends thereof, a feed-pipe connected with said pipes, a two-way cock connected with the feed-pipe, a pipe lconnected with said cock and provided with jets, ports opening through said cylinder near opposite ends adjacent to said jets, said piston having rods extending through opposite ends of the cylinder, slides connected with said rods adapted to bear on guides on the exterior of the cylinder to control said ports, and means to prevent back pressure through the cylinder from said pipes, said piston having a shield extending from opposite ends thereof and bearing against the inner wall of the cylinder adapted to open and close the inlet of said pipes in the cylinder, substantially as described.

WILLIE JOHN BOEMPER. Witnesses:

YJACOB LASKER, CEAS. G. HENSLEY. 

